Attachment for hay-presses.



' Nd- 880,881. PATENTED SEPT.11, 1906.

S. H. CHRISTOPHER.

ATTACHMENT FOR HAY PRESSES.

APPLICATION FILED 1330.1. 1905 2 SHEETS-SHEET 1.

L E INVENTOB A TTORNE Y No. 830,881. PATENTED SEPT. 11, 1906. S. H.- CHRISTOPHER. ATTACHMENT FOR HAY PRESSES.

APPLICATION FILED DBO. 1I 1905.

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UNITED STATES PATENT oEEroE.

ATTACHMENT FOR HAY-PRESSES.

No. seo,ss1.

Specification of Letters Patent.

Patented Sept. 11, 1906.

Application filed December 1,1905- Serial No. 289,792.

To all whom it may concern:

Be it known that I, SAMUEL HORTON CHRISTOPHER, a citizen of the United States, and a resident of Buena Vista, in the county of Marion and State of Georgia, have invented a new and useful Attachment for Hay-Presses, of which the following is a full, clear, and exact description.

The purpose of the invention is to provide a power-head for hay-presses which will be simple, durable, effective, and capable of attachment to any press, especially a haypress, where horse-power is employed and wherein the power-head is light of draft and imparts a long stroke to the plunger-bar and has continuous and direct action on the said bar during the pressing stroke of the latter.

A further purpose of the invention is to so construct the powerhead that while the ac tion of the head on the plunger-bar is intermittent but continuous during action the release of the plunger-bar and its rengagement by the lower head are speedily accomplished, perfectly timed, and reliable:

Another purpose of the invention it to pro vide a power-head for presses which is free from friction-rollers, toggles, or cog action.

The invention consists in the novel construction and combination of the several parts, as will be hereinalter fully set forth, and pointed out in the claims.

' Reference is to be had to the accompanying drawings, forming a part of thisspecification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of a portion of a hay-press and the improved power-head applied. Fig. 2 is a plan view of the parts shown in Fig. 1. Fig. 3 is an enlarged plan view of the power-head and plunger-bar,-

illustrating the action of the head upon the bar at the limit of the forward or pressing movement of the bar and just prior to the rebound of the bar. Fig. 4 is a View similar to that shown in Fig. 3, but illustrates the position of the power-head relative to the plunger-bar at the initial action of the head on said bar. power-head and a sectional plan view of the rear or free outer end of the plunger-bar, illustrating the relation the two parts sustain to each other when the head is about to change from its initial to its final or packing bearing on the plunger-bar in the forward or Fig. 5 is a plan View of the pressing stroke of the latter. Fig. 6 is a side elevation of the power-head and a section through the attached power-arm, the

section being taken practically on the line 6 6 of Fig. 3; and Fig. 7 is a side elevation of the {rec rear or outer end portion of the plunger- A represents a portion of a hay-press, and B, a platform which is connected with the forward end portion of the press, and to the said platform an axle 10 is generally secured, while a second axle 11 is attached to the under portion of the body of the press.

O represents an improved power-head, and D the plunger-bar of the press.

The latform B is provided near its rear end wit a cross-beam 12, which extendsbeyond one longitudinal side, and a second crossbeam 13 is secured to the said platform nearer the press, extending beyond the same side of the platform as the beam 12. A frictionroller 15 is carried by the projecting end of the rear beam 12, anda second frictionroller 16 is carried upon the corresponding portion of the forward beam 13, as is shown in Figs. 2,3, and 4, and these friction-rollers engage with the outer longitudinal edge of the plunger-bar D, serving to cause the movement of the said bar to be as frictionless as possible.

A spring 17 is suitably attached to the plunger-bar D at a point between its center and its forward end, and the rear end of the spring 17 is preferably secured to the for ward beam 13 on the said platform B, as.is shown in Figs. 1, 2, 3, and 4, and this spring 17 serves to effect a rebound of the plungerbar D after it has been forced fully forward on its pressing stroke. At the forward or inner end of the plunger-bar D a plungerehead E is suitably attached, adapted for movement in the baling-chamber of the press A.

At the rear outer end. of the plunger-barD a lip 18 is formed, being a continuation of the outer longitudinal edge portion of the said bar, and the inner face 19 of the said lip is inclined, the lip being narrowest at its outer end. WVhere the lip 18 is located a longitudinal recess 20 is produced, usually in the inner longitudinal face of the said plunger-bar, and the-forward Wall 2]. of the said recess is inclined in a forward inward direction, as is shownbest in Fig. 5. The rearward movement of the plunger-bar D or the movement of the bar at the rebound is limited in any recesses 25. are made at the said semicircular approved manneras, for exam le,. by pro ducing an offset 22 at the outer ongitudinal edge of the plunger-bar, which offset when the bar is at its full rearward stroke engages with the forward beam 13 of the platform or with any other desired stop in its path. The shock is further relieved by securing a beveled projection 22 upon the under side of the forward beam 13 and locating an arm 22 on the under side of the plunger-bar D, having an inclined end to engage with the projection 22 and, as is shown in Figs. 1 and 2, the arm 22 is mounted upon a pin 22 which passes through the plunger-bar, being. cushioned at its upper end by a spring 22 g The power-head 0 consists of a packing or body bar 23 of suitable dimensions, the end portions whereof are provided with frictionrollers 24 and 2 1*, and in opposite longitudinal faces of the said packing or body bar 23 terminals, as is best shown in Figs. 2, 3,4,and 5, so that these terminal rollers 24 and 24 form practically rotuberances from opposite longitudinal aces of the said packing or body bar 23. Triangular wings 26 and 27 are provided in connection with the said packing or body bar 23. These wings are located at opposite side edges of the said bodybar'and eXtend in op osite directions to said edges and along the ongitudinal edges from points at opposite sides of the center of the said packing or body bar to the recesses 25 in said bars, and each wing 26 and 27 is provided with a spur or lug, the spur or lug of the wing 26 being designated as 26 and the spur or lug on the wing 27 being designated as 27 These spurs or lugs are located at the outer longitudinal edges of the said wings at their ends, and the inner edges of the said spurs or lugs 26 and 27 are more or less curved, their outer side edges being straight.

A power-arm 28 is secured in any suitable or approved manner to the packing or body bar 23 and the team used as a .power for the press is suitably harnessed to the said powerarm. The power-head C is pivoted on the platform B by means of a suitable pivotpin 29, passed through the central portion of the packing or body bar 23 and preferably likewise through an annular boss 30, formed u on or attached to the upper face of the plat orm B.

In operation, supposing the plunger-bar D to be almost at the end of its forward or pressing stroke, it will be engaged at its rear the spring 17 will act to carry the plunger bar rearward. Meanwhile theopposing spur 26 of the power-head will have been placed of the said plunger-bar, guided by the lip 18,

and upon the continued movement of the power-head will complete the said forward stroke of the plunger-bar. This operation is repeated continuously as long as the powerhead is revolved, first one end and then the other of the power-head being brought into action. The plunger-bar upon its rebound will pass some distance beyond the powerhead, thus giving a maximum of stroke witha minimum of length of power-head, and it will be observed that a spur or lug 26 or 27* v first enters the recess 20 in the plunger-bar and pushes it forward while the hay is slack in the baling-chamber and that as soon as the engaging spur or lug of the power-head assumes a forward slant a terminal of the body-section of the power-head engages the plunger-bar and forcibly operates the same to render the bale compact. It is not noticeable when a spur in the recess of the plungerbar leaves the plunger and the packing or body bar 23 of the power-head engages the plunger-bar D, as the action is continuous and perfect, brought about by means of the slop or inclination 21 at the forward end of the recess 20, which slope serves to keep the pressure on until the main portion of the power-head engages the plungerbar, and the said slope of the forward wall of the recess in the plunger-bar also enables the spurs of the power-head to readily disengage from the plunger-bar. In the particular operation of the plunger-bar D when said bar is at the end of its forward stroke its inner longitudinal edge engages with a directing-pin 31, which extends upward usually from the forward cross-beam 13 at or near the center of said beam, as is particularly shown in Fig. 3, and as the spring 17 draws the plunger-bar rearward its rear end travels up the inclined edge of the wing of the power-head carrying the spur which isneXt to engage with the plunger bar and guides the recessed portion of the plunger-bar to such spur, enabling the spur to assume the position for action on the plunger-bar, as is shown in Fig. 4. I desire it to be understood that the recess 20 in the plunger-bar may be differently placed should occasion demand and that the power-head is applicable to a press operated by a motor.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a hay or similar press, a plungerbar, tension-controlled at its return stroke, and a revolving power-head adapted to propel the plunger-bar at the forward or pressing stroke, said plunger-head being provided with two contact projections at each end, arranged for alternate engagement with the plungerbar, said contact projections having such relation to each other and to the plunger-bar that when the plunger-bar is released from the contact projections at one end the contact projections the' other end of the said head will be in the path of the plunger-bar at its rebound.

2. In a hay or similar press, a plunger-bar, having a longitudinal recess at the free end thereof, a rotatable power-head for moving said bar on its forward stroke, said powerhead being provided at each end with spaced contact projections, one of said projections having a friction-roller and engaging the bar at the rear end thereof, and the other engaging within the recess, said latter projection first engaging the bar and moving it into position for engagement by the former projection.

3. In a hay or similar press, a platform, a tensionrcontrolled plunger-bar operating over the same, guides for the outer side portion of the bar, and a directing-pin for the inner side portion of the bar, said bar at its outer or rear end being provided with a longitudinal recess, and power-head mounted to turn on the platform adjacent to the rear end por tion of the plunger-bar, the said power-head being provided with spaced projections at each end and inclined side surfaces between the ends, one pro ection at each end being adapted to enter the slot in the plunger-bar and carry the same forward a predetermined distance while the other projection at the same end engages with the outer end of the said plunger-bar to complete its forward stroke, the projections at the two ends of the said head acting alternately on the said bar.

4. In hay or similar presses, the combination with a platform, a plunger-bar mounted to slide on the platform, tension-controlled at its return stroke, guides for the outer side edge of the said bar, and a directing-pin for engagement with the inner side edge of said bar, said plunger-bar being provided with a guide-lip at its rear end and a longitudinal recess in said end having a sloping forward end wall, of a power-head mounted to revolve on the said platform adjacent to the rear end of the said bar, the said power-head consisting of a body-bar having semicircular terminals and wings at opposite sides, one near each end, the outer longitudinal edges of the wings being inclined to the body-bar in opposite directions, one wing being at each end of the body-bar, and spurs carried by the said wings, having their opposite faces curved, the said spurs being adapted to enter the said slot in the plunger-bar to impart initial forward movement thereto, and the said semi circular terminals being adapted for engagement with the rear end of the plunger-bar before the engaging spur disengages from said bar whereby to finish the forward stroke of said plunger-barf In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SAMUEL HORTON CHRISTOPHER. WVitnesses:

M. I'IAIR, Crms WV. LowE. 

